jeco.dmm.sim2.lib.freelist
Class Block

java.lang.Object
  jeco.dmm.sim2.lib.freelist.Block

public class Block
extends java.lang.Object

Block class. A block is formed by the data size and the header size. IMPORTANT: we can omit header information. It is only useful for maintaining the free-chunks sortered in every ADM. Most of this information is lost when the chunk in allocated. Since we are keeping the internal structure of ADMS by simulation, we do not have to take into account his kind of headers.

Author:

José L. Risco Martín

Field Summary

protected FreeList	freeList Atomic Manager that owns this chunk.
protected long	position Current position of this block.
protected long	sizeInB Total size in B.
protected double	time Last time this block is accessed (NEW, DELETE, READ OR WRITE).

Constructor Summary

Block(FreeList adm, long position, long sizeInB)
Data size in B.

Method Summary

FreeList	getFreeList()
long	getPosition()
long	getSizeInB()
double	getTime()
void	setFreeList(FreeList freeList)
void	setPosition(long position)
void	setSizeInB(long sizeInB)
void	setTime(double time)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

time

protected double time

Last time this block is accessed (NEW, DELETE, READ OR WRITE).

position

protected long position

Current position of this block. While we are performing splitting and coalescing, original position are being modified by the DMM.

freeList

protected FreeList freeList

Atomic Manager that owns this chunk.

sizeInB

protected long sizeInB

Total size in B.

Constructor Detail

Block

public Block(FreeList adm,
             long position,
             long sizeInB)

Data size in B.

Method Detail

getTime

public double getTime()

setTime

public void setTime(double time)

getPosition

public long getPosition()

setPosition

public void setPosition(long position)

getFreeList

public FreeList getFreeList()

setFreeList

public void setFreeList(FreeList freeList)

getSizeInB

public long getSizeInB()

setSizeInB

public void setSizeInB(long sizeInB)